status-go/vendor/github.com/jbenet/goprocess/background.go

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2019-06-09 07:24:20 +00:00
package goprocess
// Background returns the "bgProcess" Process: a statically allocated
// process that can _never_ close. It also never enters Closing() state.
// Calling Background().Close() will hang indefinitely.
func Background() Process {
return background
}
var background = new(bgProcess)
type bgProcess struct{}
func (*bgProcess) WaitFor(q Process) {}
func (*bgProcess) AddChildNoWait(q Process) {}
func (*bgProcess) AddChild(q Process) {}
func (*bgProcess) Close() error { select {} }
func (*bgProcess) CloseAfterChildren() error { select {} }
func (*bgProcess) Closing() <-chan struct{} { return nil }
func (*bgProcess) Closed() <-chan struct{} { return nil }
func (*bgProcess) Err() error { select {} }
func (*bgProcess) SetTeardown(tf TeardownFunc) {
panic("can't set teardown on bgProcess process")
}
func (*bgProcess) Go(f ProcessFunc) Process {
child := newProcess(nil)
go func() {
f(child)
child.Close()
}()
return child
}